Speaker
Mr
Igor Katchaev
(Institute for High Energy Physics, Protvino, Russia)
Description
Partial Wave Analysis of the $\pi^+\pi^-\pi^-$ system produced by 28 GeV/c
$\pi^-$ beam on berillium target is presented. About $30\cdot10^6$ events in
the wide $|t|$-prime range $0\ldots1~GeV^2/c^2$ are collected with upgraded
VES setup. The size of the data sample is 2.5 times larger than that
previously analyzed by VES. Data are analyzed using formalism of density
matrix with unlimited rank. We will discuss status of the states a1(1700),
a2(1700), decay modes with $J^{PC}=1^{++}$ P-wave $f0(980)\pi$,
$J^{PC}=2^{-+}$ D-wave $f0(980)\pi$, structure of exotic P-wave
$\rho(770)\pi$ with $J^{PC}=1^{-+}$.
Primary author
Mr
Igor Katchaev
(Institute for High Energy Physics, Protvino, Russia)
